Cisco 4321 Thoughput

[de1denta]

Hi All,

I have a 100Mbps DIA circuit being installed for a site and the provider has suggested a Cisco 4321 router to terminate the circuit with the upgraded 100Mbps thoughput license.

Is this a suitable router do you know? My understanding was that a 100Mbps circuit would provide a total combined upstream/downstream thoughput of 200Mbps, is that correct? If so should a Cisco 4331 be used instead?

Thank you

[Mark Malone · Accepted solution]

Looking at the stats I would go 4331 , we use them and we have 50mb and 75mb lines working fine on them in our remote offices , you may struggle with 4321

http://www.cisco.com/c/en/us/products/collateral/routers/4000-series-integrated-services-routers-isr/datasheet-c78-732542.html

Model Comparison

Feature	4321	4331
Integrated WAN ports	1 GE / SFP 1 GE	1 GE / SFP 1 GE 1 SFP
Performance	50 Mbps Upgradable to 100 Mbps	100 Mbps Upgradable to 300 Mbps

[de1denta]

Thanks both. I will look at the ISR 4331

[Joseph W. Doherty · Accepted solution]

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Posting

Cisco's performance rating, for the 4K series, isn't real clear.  On one of their data sheets they compare their bandwidth to the maximum of 350 Mbps of the earlier ISR G2 series, which is documented as "WAN" bandwidth (which I would assume to mean full-duplex).  On another data sheet they list the 4K series bandwidth as aggregate, which I would assume would mean you need to count duplex twice.

You might ask for clarification from Cisco sales and/or your provider, as how the 100 Mbps is licensed as this would be critical to dealing with a 100 Mbps duplex circuit.

If there's little price delta between the 4321 and the 4331, this question might be moot.